Airway basal progenitor cell-mediated epithelial regeneration

Airway basal progenitor cell-mediated epithelial regeneration is a physiological process where basal cells, the resident stem cells of the tracheobronchial epithelium, proliferate and differentiate to repair the airway lining (Rock et al., 2009, PNAS). These cells are anchored to the basement membrane and express specific markers such as TP63 and Keratin 5 (Hogan et al., 2014, Cell Stem Cell). Under normal conditions, they maintain a balanced population of ciliated and secretory cells to ensure effective mucociliary clearance. However, in chronic respiratory diseases like COPD, asthma, and cystic fibrosis, this process is often dysregulated, leading to pathological remodeling such as goblet cell hyperplasia or squamous metaplasia (Crystal, 2014, Prog Mol Biol Transl Sci). Pharmacological intervention typically targets the underlying signaling pathways, including Notch, Wnt, and EGFR, to either stimulate repair or correct abnormal differentiation patterns. Although it is a biological mechanism rather than a single molecular target, it is a primary focus for regenerative therapies in pulmonary medicine.

Other names

Airway epithelial regenerationBasal cell-driven airway repairTracheobronchial epithelial regenerationAirway stem cell regeneration

Modulation of signaling pathways (Notch, Wnt, EGFR) to regulate the proliferation of basal stem cells and their subsequent differentiation into ciliated or secretory epithelial cells.